JPH0635207A - Sensitized material treating device - Google Patents

Abstract

PURPOSE:To simplify a water storage tank of the sensitized material treating device. CONSTITUTION:In a developing part 14, the tip of a piping 58 connected to external water service is opened in an auxiliary tank 18. In a bottom plate 18A of the auxiliary tank, one end of a piping 134 penetrates and is opened so as to be opposed to the opening of the piping 58, so that water from the piping 58 flows in. The piping 134 is connected to a feed water pump 130 through an expanded diameter tube 128, so that water of a prescribed quantity can be stored between the tube and the feed water pump 130. The feed water pump 130 is opened to a replenishing cylinder 132, and in a state that an operation of the feed water pump 130 is stopped, water from the piping 58 is stored in the expanded diameter tube, and water overflowing the piping 134 flows as developing water into the developing part, and water in the expanded diameter tube is supplied to the replenishing cylinder 132 by an operation of the feed water pump 130.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive material processing apparatus, and more particularly to a photosensitive material processing apparatus which develops a photosensitive lithographic printing plate with water and then applies a processing liquid such as a dyeing liquid.

[0002]

2. Description of the Related Art A waterless photosensitive lithographic printing plate having a silicone rubber layer as an ink repellent layer (hereinafter referred to as "waterless lithographic plate").
For example, Japanese Patent Publication No. 44-23042 and Japanese Patent Publication No. 46-1
No. 6044 (publication), a waterless planographic printing plate in which a photo-soluble or photo-insolubilizing photosensitive layer and a silicone rubber layer are laminated on a substrate, JP-A-48-94505 and JP-A-50-94505.
No. 50102 (publication), there is proposed a waterless planographic printing plate in which a photoadhesive photosensitive layer and a silicone rubber layer are laminated on a substrate. These are capable of printing tens of thousands of sheets without using dampening water.

In such a waterless planographic printing plate, aluminum or the like is used as a support for a substrate, a photosensitive layer and a silicone rubber layer are laminated on this support, and a protective film is laminated on the upper surface to protect the surface. ing. In this waterless planographic printing plate, the photosensitive layer is cured depending on the exposure amount during printing, and the adhesive force between the photosensitive layer and the silicone rubber layer is increased. When the exposed waterless lithographic plate is developed, a developing solution is applied to the surface and the unexposed silicone rubber layer is peeled off (Japanese Examined Patent Publication 5).
No. 4-26923).

The developer for developing the waterless lithographic plate does not include substances such as organic solvents, surfactants, basic substances and acidic substances which are contained in ordinary developers.
It has been proposed to use a processing solution consisting essentially of water (hereinafter referred to as "developing water").

Further, in this waterless planographic printing plate, even if the silicone rubber layer on the unexposed portion is removed, the image portion and the non-image portion have the same color, so crystal violet, A stain liquid containing Astrazone Red as a main component is applied. This facilitates the inspection work of the developed waterless planographic printing plate.

In the waterless planographic developing apparatus, a dyeing section for storing a dyeing solution is arranged adjacent to a downstream side of a developing section for storing developing water. The dyeing solution in the dyeing section decreases in proportion to the amount of the waterless planographic process, so the dyeing solution for replenishing is replenished while being diluted with water. The amount of water replenished at this time is
It is a small amount of about 100 cc / h.

[0007]

The developing water to be replenished to the developing section can be always replenished in a constant amount by directly connecting a water pipe, but the water for diluting the replenishing dye solution is replenished. It is necessary to replenish at a constant ratio depending on the amount of the dyeing solution used. Therefore, the waterless planographic developing apparatus is provided with a water supply tank for diluting the dyeing solution to be replenished.

However, a small amount of water may be used to dilute the replenishing dyeing solution, but for this reason, providing a dedicated tank hinders downsizing of the apparatus and cost reduction.

The present invention has been made in consideration of the above facts, and was developed with the object of providing a photosensitive lithographic printing plate processing apparatus which stores water to be supplied to a dyeing section in a space-saving manner.

[0010]

A photosensitive material processing apparatus according to claim 1 of the present invention is an apparatus for processing a photosensitive material with a processing liquid in a processing section, and a processing liquid replenisher for supplying a replenishing liquid of the processing liquid. Section, a pipe having water supplied to one end and a water supply amount adjusting means at the other end and capable of storing a predetermined amount of water, and the replenisher and water are supplied to the processing unit at a predetermined ratio. A means for controlling the treatment liquid replenishing section and the water supply amount adjusting means is provided.

According to a second aspect of the present invention, there is provided a light-sensitive material processing apparatus, wherein a water treatment section for treating the exposed light-sensitive material with water, and water supply for supplying water for treating the light-sensitive material to the water treatment section. A pipe, a processing unit for supplying a processing liquid to the photosensitive material processed by the water processing unit, a processing liquid replenishing unit for replenishing the processing unit with a replenisher for the processing liquid, and a water supply unit for supplying water to the processing unit. A water supply amount adjusting means, a pipe having one end for receiving a part of the water supplied from the water supply pipe to the water treatment section, and the other end connected to the water supply amount adjusting means for storing a predetermined amount of water; It is characterized by comprising: the water supply amount adjusting means and a means for controlling the treatment liquid replenishing portion so that a replenishing liquid of the liquid and the water are supplied to the treatment portion at a predetermined ratio.

A photosensitive material processing apparatus according to a third aspect of the present invention is the photosensitive material processing apparatus according to the second aspect, wherein an intermediate portion of the water storable pipe is expanded to store a predetermined amount of water. It is characterized by having done.

[0013]

In the photosensitive material processing apparatus according to the first aspect of the present invention, the water is supplied to one end of the photosensitive material processing pipe, and the other end of the photosensitive material processing device is provided with a water supply amount adjusting means to store a predetermined amount of water. It is used for diluting the solution and is replenished as the processing solution at a predetermined ratio with the replenishing solution of the processing solution, and it is not necessary to provide a pipe for dilution water.

In the photosensitive material processing apparatus according to the second aspect of the present invention, a constant amount of water is always supplied to the water processing section such as the developing section. However, the processing section such as the dyeing section is diluted with water. When replenishing the liquid, the pipe for supplying water to the treatment unit is associated with the water supply pipe for supplying water to the water treatment unit, and one of the water supplied to the water treatment unit is connected to the pipe for supplying water to this treatment unit. Store the part.

Some of the water supplied to the water treatment section flows into the pipe to the treatment section, while the remaining water is used as treated water in the water treatment section. Water in a pipe capable of storing water is supplied to the processing unit by a water supply amount adjusting means such as a water supply pump and used to dilute the replenisher of the processing liquid supplied from the processing liquid replenishing unit. As a result, the amount of water stored in the pipe for supplying water to the treatment unit is reduced, but the water is replenished from the water supply pipe to the water treatment unit.

In the photosensitive material processing apparatus such as the photosensitive lithographic printing plate processing apparatus of the present invention, a predetermined amount of water can be stored in a pipe for supplying water to the processing section, and this piping is connected to the processing section. It is also used as a water supply tank for supplying water. That is, it is not necessary to specially provide a tank for storing water to be supplied to the processing section, and the structure of the photosensitive material processing apparatus can be simplified.

In the photosensitive material processing apparatus according to the third aspect of the present invention, the diameter of the intermediate portion of the pipe capable of storing water is expanded so that a predetermined amount of water can be stored in the pipe. If the length of the pipe is constant, the diameter of the pipe can be increased to increase the volume of the pipe. As a result, the required amount of water can be constantly supplied.

In order to store a predetermined amount of water (diluting water), it is possible to lengthen the pipeline, but simply increasing the diameter of the intermediate portion of the pipeline makes the pipeline unnecessarily long. It is also possible to increase the volume in the pipe line. The pipe for supplying water to the treatment section is preferably provided so that the water supply pump side is at a low position, which can prevent air from entering the water pipe.

[0019]

1 and 2 show a waterless planographic developing apparatus 10 which is one of photosensitive lithographic printing plate processing apparatuses as an example of the photosensitive material processing apparatus of the present invention. As shown in FIG. 1, the waterless lithographic developing apparatus 10 is provided with an insertion table 11 from which a waterless lithographic plate 12 which is a photosensitive lithographic printing plate is placed in a substantially horizontal state in the casing 10A. Inserted in. Further, the waterless lithographic developing apparatus 10 can be provided with a stocker 11A on the output side opposite to the insertion table 11, and the waterless lithographic developing apparatus 10 can perform development processing. Are stocked when discharged from the casing 10A. In addition, in the waterless planographic developing apparatus 10, an automatic feeder or the like is attached instead of the insertion table 11, and the waterless planographic plate 12 is automatically installed in the casing 10A.
You may send it in. Also, stocker 11
A washing and drying device is provided between A and the waterless planographic developing device 10 to continuously wash the developed waterless planographic plate 12,
The stocker 1 may be dried and discharged.
Instead of 1A, an automatic transport device for the waterless lithographic plate 12 may be provided so that the developed waterless lithographic plate 12 can be subjected to continuous plate bending and punching.

FIG. 2 shows a schematic structure of the waterless planographic developing apparatus 10. The waterless planographic developing apparatus 10 includes a developing section 14 and a dyeing section 16. After the waterless planographic plate 12 is developed in the developing section 14, a dyeing process for facilitating the plate inspection work is performed in the dyeing section 16. It has become. As the dyeing solution used in the dyeing section 16, a dyeing solution containing crystal violet, astrazone red, or the like is used.

The waterless lithographic plate 12 developed by the waterless lithographic developing apparatus 10 comprises, for example, an aluminum substrate on which a primer layer, a photosensitive layer, a silicone rubber layer, and a protective film are sequentially laminated. The waterless lithographic plate 12 in which the photosensitive layer is exposed according to the image is developed by the waterless lithographic developing apparatus 10 with the surface protective film peeled off.

The developing section 14 and the dyeing section 16 are covered with an inner casing 15 and are partitioned by a partition wall 15A. The partition wall 15A has an opening 15B through which the waterless planographic plate 12 is inserted.

The developing tank body 20 of the developing section 14 is opened upward, the bottom portion is formed in an inverted mountain shape, and the developing water collecting tank 22 is formed in the central portion of the bottom portion. Developer water is stored in the developer water recovery tank 22. Further, in the developing section 14, an auxiliary tank 18 is disposed between the insertion side of the waterless planographic plate 12 (on the left side of the paper surface of FIG. 2) and the developing tank body 20. The bottom plate 18A of the auxiliary tank 18 is inclined so that the developing tank main body 20 side is lowered, and the tip end thereof is bent toward the developing water collecting tank 22. The auxiliary tank 18 may be integrally assembled with the developing tank body 20.

The developing water stored in the developing water recovery tank 22 is
Alkaline components and organic substances are not included in that component,
Simple water such as tap water can be applied. Further, the hardness of water may be adjusted by mixing an antifoaming agent with water to prevent generation of bubbles during circulation, or by adding a chelating agent. Furthermore, the number of times of cyclic use may be increased by adding a preservative. An ozone generator may be attached to obtain the same effect as that of the preservative.

In the developing section 14, a pair of transport rollers 24, 25, 26, 28 are arranged in order from the insertion side of the waterless planographic plate 12. The pair of transport rollers 24, 25 are provided in the auxiliary tank 18. A pair of conveying rollers 26, 28 is provided on the upper portion of the developing tank main body 20. Conveyor roller pairs 24, 25, 2
The racks 6 and 28 are supported by a rack side plate (not shown), and are rotated by transmitting the driving force of a driving means (not shown) to sandwich and convey the waterless planographic plate 12 in the direction of arrow A in FIG. Further, the waterless planographic plate 12 is subjected to development processing by applying developing water on its surface before passing through the conveying roller pair 24 and the conveying roller pair 28.

The backflow prevention roller 27 is in contact with the upper roller of the transport roller 24 to prevent the backflow of the developing water 18. Further, between the transport roller pair 24 and the transport roller pair 25 and between the transport roller pair 25 and the transport roller pair 26,
The guide plate 29 is arranged substantially horizontally, and the waterless planographic plate 12 is sent out from the insertion side by the pair of conveying rollers 24, 25, 26 and conveyed in a substantially horizontal state.

Spray pipes 34 are respectively arranged above the conveying roller pairs 24 and 25 on the downstream side. In these spray pipes 34, discharge ports (not shown) provided at predetermined intervals along the conveyance width direction of the waterless planographic plate 12 are directed between the upper and lower rollers of the roller pair 24, 25. These spray pipes 34 are connected to a developing water supply device, which will be described later, by a pipe line 38. As a result, the developing water is sent to the spray pipe 34, and the developing water is sprayed and evenly applied onto the surface of the waterless planographic plate 12 conveyed by the pair of conveying rollers 24 and 25.

The conveying roller pair 28 is arranged at the rearmost part of the conveying path of the waterless planographic plate 12 in the developing section 14 and has a role of a squeeze roller for squeezing the developing water from the waterless planographic plate 12.

A brush roller 30 is arranged between the conveying roller pair 26 and the conveying roller pair 28. The brush roller 30 is configured to selectively scrape off the silicone layer corresponding to the image portion on the plate surface by rubbing the plate surface of the waterless planographic plate 12 being conveyed. Brush roller 3
Similarly to the pair of conveying rollers 24, 25, 26, 28, 0 is also supported by a side plate (not shown) and is rotated by transmitting the driving force of a driving means (not shown).

The brush roller 30 is formed by implanting a brush material on a plastic or metal roll, and rotates in a direction (counterclockwise direction in FIG. 2) which is in conformity with the conveying direction of the waterless planographic plate 12 (normal). Then, the surface of the waterless planographic plate 12 is rubbed. The rotation number of this brush roller 30 is 1
00-800 rpm (preferably 200-600 rp
m) is set.

Further, the brush roller 30 rotates and reciprocates in the axial direction (the front and back direction of the paper surface in FIG. 2) to further improve the effect of scraping the silicone layer on the plate surface of the waterless planographic plate 12 (hereinafter Is called forward swing).

The combination of the rotating direction of the brush roller 30 and the rotating direction of the brush roller 100 on the dyeing section 16 side, which will be described later, can be selected as follows. (Developing unit 14) ----- (Dyeing unit 16) -Forward rotation oscillation -------- Reverse oscillation-Forward oscillation -------- Forward oscillation-Normal Rolling oscillation --------- Normal rotation Oscillation--Normal rotation oscillation ------ Reverse rotation (combination of this embodiment) In addition to these, reverse rotation oscillation of the brush of the developing unit 14 and dyeing unit There are also combinations such as 16 normal rotations of brushes.

A roller 32 is arranged below the brush roller 30, and a guide plate 31 is arranged downstream of the roller 32. The waterless planographic plate 12 is conveyed while being sandwiched between the roller 32 and the brush roller 30, and is guided by the guide plate 31.
Is sent out in a substantially horizontal state. At this time, the surface is rubbed by the brush roller 30, and the silicone layer corresponding to the image area is surely scraped off. The guide plate 31 also has a role of preventing vignetting of the waterless planographic plate 12.

The blade 33 is in contact with the upper roller of the conveying roller pair 26. The blade 33 removes the silicone layer scraped off by the brush roller 30 so as not to be taken out to the upstream side even if it adheres to the upper roller of the conveying roller pair 26.

Since the roller 32 is freely rotatable, when the waterless planographic plate 12 is fed while the brush roller 30 is stopped, the roller 32 rotates, so that the waterless planographic plate 12 can be smoothly rotated. It is inserted between the brush roller 30 and the roller 32. Such a state does not occur during the actual developing process, but is performed when inspecting the brushing state of the brush roller 30. That is, the waterless planographic plate 12 which is wholly exposed is set to the brush roller 30 and the roller 3.
The brush roller 30 is rotated while being held in a stopped state of being sandwiched between the two and the brush pressure, and it is determined whether or not the brush width is appropriate.

In such an inspection, the waterless planographic plate 12
Since the brush roller 30 can be freely inserted and withdrawn while the brush roller 30 is stopped, even if the exposure amount is reduced and the brush roller 30 has a large amount of deviation, the portion left at the time of insertion and withdrawal may peel off. It is possible to obtain an accurate brush width.

Spray pipes 40 and 42 are arranged around the brush roller 30. Spray pipe 40
Is disposed between the brush roller 30 and the conveying roller pair 26, and an ejection port (not shown) is formed toward the brush roller 30. Like the spray pipe 34, the spray pipe 40 is also connected to a developing water supply device, which will be described later, by a pipe branching from the pipe 38. The developing water supplied to the spray pipe 40 by the developing water supply device is ejected toward the brush roller 30.

The spray pipe 42 is composed of a pair of conveying rollers 28.
A discharge port (not shown) is formed between the upper and lower rollers. The spray pipe 42 is also a pipe branching from the pipe 38 and communicates with a developing water supply device described later. The developing water is sent to the spray pipe 42, and the developing water is ejected between the upper and lower rollers of the conveying roller pair 28.

A brush cover 39 having a substantially U-shaped cross section is disposed above the brush roller 30. The cover 39 prevents the developing water adhering to the brush roller 30 from scattering due to the rotation of the brush roller 30.

The developing water supply device is composed of a circulation pump 44, a filter 46, and a pipe line 48 connecting the circulation pump 44 and the developing water recovery tank 22.

The circulation pump 44 is a variable flow rate pump,
The discharge flow rate is controlled by being connected to the control device 52.
The pipe 38 is connected to the discharge port side of the circulation pump 44, and one end of the pipe 48 is connected to the suction port side. The other end of the pipe 48 is connected to the bottom of the developer water recovery tank 22 via a valve 55 on the way, and the development water in the developer water recovery tank 22 is sucked from the pipe 48 by the operation of the circulation pump 44. Through the conduit 38, the spray pipes 34, 4
Sent to 0, 42.

A filter 46 provided in the middle of the pipeline 38
Is adapted to filter out the residues in the developing water that pass through the conduit 38 (mainly the developing residues from the photosensitive layer and the silicone layer scraped from the surface of the waterless planographic plate 12). The mesh of this filter is 10 μ to 500 μ (preferably 100 μ to 30 μ).
0 μ) is used. A flow rate sensor (not shown) is provided in the middle of the pipeline 38 to detect the flow rate of the developing water passing through the pipeline 38, and when the flow rate of the developing water passing through the pipeline 38 becomes a predetermined flow rate or less, You may make it announce the replacement time. As the flow rate sensor at this time, a general flow rate meter can be used, but in order to downsize the device, a rotary type is preferable.

In the conduit 48, a conduit 56 opened and closed by the valve 54 is provided between the valve 55 and the developing water recovery tank 22.
Is branched, and by opening the valve 54,
The developing water in the developing water recovery tank 22 can be discharged to a discharge tank or the like (not shown).

An overflow pipe 50 is provided in the developing water recovery tank 22. The overflow pipe 50 has one end protruding from the liquid surface of the developing water to a predetermined height and the other end connected to the pipe 56. When the amount of the developing water in the developing water recovery tank 22 reaches a predetermined amount or more and reaches the upper end opening of the overflow pipe 50, the developing water of the outermost layer is discharged by the overflow pipe 50. The height of the overflow pipe 50 from the bottom of the developing water recovery tank 22 corresponds to the maximum liquid level of the developing water stored in the developing water recovery tank 22.

One end of a pipe 58 is opened in the developing section 14, and the other end of the pipe 58 is connected to a water pipe outside the waterless planographic developing apparatus 10 via a valve 60. By opening the valve 60, the developing water can be supplied to the developing section 14 of the waterless planographic developing apparatus 10. That is, as described above, in the waterless planographic developing apparatus 10 used in this embodiment, tap water is used as the developing water. The pipe 58 for supplying the developing water is connected to the developing unit 14
Is opened in the auxiliary tank 18, and the developing water supplied from the pipe 58 flows into the developing water recovery tank 22 along the bottom plate 18A of the auxiliary tank 18.

A solenoid valve 62 and a flow meter 64 with a regulating valve are arranged in the pipe 58 to which tap water is supplied, and these are connected to the control device 52. Therefore, when the control device 52 opens the solenoid valve 62, tap water is supplied into the waterless lithographic developing device 10, and the control device 52 supplies the adjusting valve-equipped flowmeter 64 to the developing portion 14. While controlling the flow rate, the control device 52 can integrate the supply amount of the developing water. When the supply amount of the developing water reaches a predetermined value, the filter 16
May be replaced, or the developing water in the developing unit 14 may be replaced. The solenoid valve 62 is opened when the processing of the waterless planographic plate 12 is started.
The pipe 58 is branched at the inlet side of the solenoid valve 62, and a washing hose 70 is provided via a valve 68 so that the inside of the waterless lithographic developing apparatus 10 can be washed with tap water. There is.

In the waterless planographic developing apparatus 10 of this embodiment,
An aluminum detector 86 for detecting the passing amount of the waterless planographic plate 12, that is, the processing amount (the area of the waterless planographic plate 12) is provided on the entrance side of the developing unit 14, and is connected to the control device 52. The aluminum detector 86 has a plurality of photoelectric tubes arranged along the width direction of the waterless planographic plate 12 to detect the width of the waterless planographic plate 12.
Since the length can be detected by measuring the time when the water passes over the aluminum detector 86, the control device 52 can calculate the area of the waterless planographic plate 12 and its integrated processing amount. The aluminum detector 86 detects and integrates the area on the plate surface of each waterless planographic plate 12 one by one, and inputs the widthwise length of the waterless planographic plate 12 into the device in advance. The area may be detected by detecting the length with one phototube. The controller 52 may integrate the treated area of the waterless planographic plate 12 and, after treating a predetermined amount of the waterless planographic plate 12, prompt the replacement of the developing water in the filter 46 and the developing section 14.

When the aluminum detector 86 detects the insertion of the waterless planographic plate 12, the control unit 52 opens the solenoid valve 62 and starts supplying water to the developing section 14 through the pipe 58.

A heater 88 is arranged at the bottom of the developing water recovery tank 22. The heater 88 is connected to a power source (not shown) to heat the developing water. The temperature of the developing water is 15 ° to 6 ° by this heater 88.
It is set to 0 ° C (preferably 25 ° to 50 ° C). Further, the developing time in this apparatus is set to 10 seconds to 3 minutes (preferably 30 seconds to 2 minutes), and the dyeing time is set to 5 seconds to 1 minute (preferably 10 seconds to 30 seconds). ing.

Next, the dyeing section 16 will be described. The dyeing tank main body 90 of the dyeing section 16 is opened upward similarly to the developing tank main body 20, the bottom is formed in an inverted mountain shape, and the dyeing liquid recovery tank 92 is formed in the center of the bottom, and the development water recovery tank 22 is formed. Is located adjacent to. A dyeing liquid is stored in the dyeing liquid recovery tank 92. An overflow pipe 91 is arranged in the dyeing liquid recovery tank 92. The upper end of the overflow pipe 91 is opened at an upper level position of the dyeing liquid in the upper part of the dyeing liquid recovery tank 92, and the other end of the overflow pipe 91 penetrates the bottom of the dyeing liquid recovery tank 92 and protrudes outward to waste liquid tank 72. It has an opening inside. The overflow pipe 91 is provided with a dyeing liquid recovery tank 92 by replenishing the dyeing liquid by a dyeing liquid replenishing device described later.
When the liquid level inside rises and exceeds the upper end of the overflow pipe 91, the dyeing liquid is removed from the dyeing liquid recovery tank 92 into the waste liquid tank 72.
It is designed to be discharged to.

On the upper part of the dyeing tank main body 90, the waterless planographic plate 1
A pair of conveying rollers 94 and 96 are sequentially arranged from the entrance side to the dyeing tank main body 90 along the conveying direction 2. The conveying roller pairs 94 and 96 are supported by a rack side plate (not shown), and are rotated by receiving the driving force of a driving means (not shown).
The waterless planographic plate 12 is sandwiched and conveyed. These conveying roller pairs 94 and 96 are formed of a general rubber material so as not to damage the surface of the waterless planographic plate 12 to be conveyed.

The tip of the blade 95 is in contact with the upper roller of the conveying roller pair 94. As a result, the development dust adhered to the conveyance roller pair 94 is removed by the blade 9
5, the surface of the pair of transport rollers 94 is kept smooth. The blade 95 also has a role of preventing backflow.

A conveying roller pair 98 is arranged downstream of the waterless planographic plate 12 in the dyeing tank main body 90 in the conveying direction. The conveyance roller pair 98 is made of NBR rubber (nitrile butadiene rubber), Molton roller, or the like as a roll material, and has an improved wiping-off property for the dyeing solution.

A brush roller 100 is arranged between the conveying roller pair 94 and the conveying roller pair 96. The brush roller 100 is also supported by a side plate (not shown) similarly to the pair of transport rollers 94 and 96, and the driving force of a drive means (not shown) is transmitted to the brush roller 100 in a direction opposite to the rotation direction of the pair of transport rollers 94 and 96 (clockwise in FIG. ) To rotate. The brush roller 100 is formed by implanting a brush material on a roll made of plastic or metal, and is rotated in a direction opposite to the conveying direction of the waterless planographic plate 12 (counterclockwise direction in FIG. 2) so that the waterless planographic plate 12 can be rotated. It rubs against the surface of. The rotation number of the brush roller 100 is 100 to 800 r
It is set to pm (preferably 200 to 600 rpm).

A roller 32 is disposed below the brush roller 100, similarly to the lower portion of the brush roller 30, and a guide plate 31 is provided adjacent to the upstream side of the roller 32. Therefore, the waterless planographic plate 12 is inserted between the roller 32 and the brush roller 100 in a substantially horizontal state, and the dyeing solution is applied to the surface by the brush roller 100. At this time, the guide plate 31 also has a role of preventing eclipse from the waterless planographic plate 12.

Around the brush roller 100, spray pipes 104 and 105 are arranged. The spray pipe 1 disposed on the upstream side of the brush roller 100.
On 04, a rectifying plate 106 extending substantially in the vicinity of the brush roller 100 is provided. Spray pipe 1
In 04, discharge ports (not shown) are provided toward the flow straightening plate 106 along the axial direction of the brush roller 100 at predetermined intervals.

The spray pipe 104 is connected to a dyeing liquid supply device, which will be described later, through a pipe line 110. As a result, the dyeing liquid is sent to the spray pipe 104, discharged toward the straightening plate 106, guided by the straightening plate 106, and supplied to the brush roller 100. At this time, the dyeing liquid spreads while flowing down on the plate of the current plate 106, and is uniformly supplied onto the brush roller 100.

A straightening plate 108 is provided on the spray pipe 105 on the downstream side of the brush roller 100 and extends substantially downwardly between the upper and lower rollers of the conveying roller pair 96. The spray pipe 105 is provided with an appropriate number of discharge ports (not shown) along the axial direction so as to face the straightening plate 108. Like the spray pipe 104, the spray pipe 105 is connected to a dyeing liquid supply device described later via a pipe line 110. As a result, the dyeing solution is sent to the spray pipe 105, and the dyeing solution is supplied to the straightening plate 1.
It is discharged toward 08. The dyeing liquid discharged toward the rectifying plate 108 is guided by the rectifying plate 108 and supplied between the upper and lower rollers of the transport roller pair 96. At this time, the dyeing liquid spreads while flowing down on the plate of the current plate 108, and is uniformly supplied to the surface of the waterless planographic plate 12 sandwiched by the pair of transport rollers 96.

Brush roller 100 and spray pipe 10
A brush cover 107 having a substantially U-shaped cross section is arranged above the portions 4 and 105. The brush cover 107 rotates the brush roller 100 and sprays the pipe 104,
The stain solution 105 is prevented from scattering.

The dyeing liquid supply device includes a circulation pump 114, a filter 116, a circulation pump 114 and a dyeing liquid recovery tank 92.
It is constituted by a pipe line 118 communicating with and. The pipe line 110 is connected to the discharge port side of the circulation pump 114, and one end of the pipe line 118 is connected to the suction port side. The circulation pump 114 is connected to the control device 52,
When the circulation pump 114 is operated by the circulation pump 114, the stain solution in the stain solution recovery tank 92 passes through the pipe 118,
4 and the spray pipe 1 through the conduit 110.
It is sent to 04, 105.

A filter 116 is disposed in the middle of the pipe 118, and the residue in the dyeing solution passing through the pipe 118 (mainly the silicone scraped from the surface of the waterless planographic plate 12 brought in from the developing section). Layer development residue).

The dyeing solution replenishing device is a dyeing solution tank 122 containing the dyeing solution, a dyeing solution supply pump 124 for supplying the dyeing solution into the dyeing solution recovery tank 92, and a dyeing solution supplied to the dyeing solution recovery tank 92. Water supply pump 130 for diluting liquid
Composed by.

One end of a pipe 126 is communicated with the dyeing liquid tank 122, and the other end of the pipe 126 is open to a replenishing cylinder 132 arranged adjacent to the dyeing liquid recovery tank 92. A dyeing liquid supply pump 124 is arranged in the middle of the conduit 126. Further, the replenishing cylinder 132 is opened at the other end of the pipe 134 having one end opened inside the developing section 14. The water supply pump 130 is arranged in the middle of the pipe 134.

As shown in FIG. 3, the opening of the pipe 134 on the side of the developing section 14 is provided so as to face the opening of the pipe 58 for supplying the developing water, so that the developing water from the pipe 58 flows in. Has become. In the middle of this pipe 134,
A diameter-expanding pipe 128 such as a vinyl pipe having a larger diameter than the pipe 134 is connected to secure a predetermined volume (in this embodiment, about 400 cc of water is stored). Further, the water flowing out from the pipe 58 causes the pipe 134 and the expanded pipe 128 to
When it fills the inside, it overflows from the pipe 134 and flows into the developing water recovery tank 22 of the developing section 14.

Here, in this embodiment, the amount of developing water supplied from the pipe 58 is 1500 cc / min, and the amount of water (dyeing water) replenished to the dyeing liquid recovery tank 92 by the water supply pump 130 is 200 cc. It is set to be / min. Therefore, when the water supply pump 130 is not operating,
1500 cc / min of water is used as developing water, and immediately after the water supply pump 130 is operated, about 1300 cc / min of water is used as developing water.

As shown in FIG. 2, the dyeing liquid supply pump 124 and the water supply pump 130 are connected to the controller 52, and the dyeing liquid supply pump 124 is connected by the controller 52.
When the water supply pump 130 is operated, the replenishing dye solution and water are supplied to the dye solution collecting tank 92 as the dye solution through the replenishing cylinder 132. The replenishment amount of the dyeing solution is determined according to the treatment amount of the waterless planographic plate 12, and the replenishment amount is 5 to 5.
100 cc / m ² (preferably 10~60cc / m ²⁾ is set in staining solution supply pump 12 to reflect this replenishing amount
4 and the water supply pump 130 are activated.

A heater 88 is provided at the bottom of the dyeing liquid recovery tank 92.
Is provided and is connected to a power source (not shown) to heat the dyeing solution. The temperature of this dyeing solution is 1
The temperature is set to 5 to 45 ° C. (preferably 20 to 40 ° C.) and controlled by the controller 52.

Further, the waterless planographic developing apparatus 10 is provided with liquid level measuring tanks 136 and 142 which communicate with the developing water recovery tank 22 and the dyeing liquid recovery tank 92 and monitor the respective liquid levels. . The liquid level measuring tank 136 of the developing water is connected to the developing water collecting tank 22 through a pipe 138, and the liquid level gauge 14
0 is set. In addition, a liquid level measuring tank 142 for the staining liquid
Is connected to the dyeing liquid recovery tank 92 through a pipe 144, and a liquid level gauge 146 is provided.

These liquid level gauges 140 and 146 are connected to the control device 52 so as to keep the liquid level of the developing water recovery tank 22 and the dyeing liquid recovery tank 92 within a predetermined range, and When the surface level goes out of the predetermined range, the worker is notified by an alarm, a display, or the like. This makes it possible to prevent the heater 88 from being cooked dry and to monitor the operation of each replenishing device for the developing water and the dyeing solution.

Next, the operation of this embodiment will be described. The waterless planographic printing plate 12 on which an image is printed by an image printing device (not shown) is inserted into the waterless planographic developing device 10 from the insertion stand 11. In the waterless planographic developing apparatus 10, the waterless planographic plate 12 passes above the aluminum detector 86 when it is inserted into the developing section 14. As a result, the control device 52 can know the start of processing and the processing area of the waterless planographic plate 12. In the waterless lithographic plate 12 inserted into the developing section 14, the light-irradiated portion of the photosensitive layer, that is, the exposed portion of the photosensitive layer is cured and adheres to the silicone layer, and the unexposed portion can be swollen or eluted by developing water. In this state, the protective film laminated to protect the surface is peeled off and inserted into the waterless planographic developing apparatus 10.

The waterless planographic plate 12 is nipped and conveyed by the pair of conveying rollers 24 and 25 of the developing section 14, and is sprayed onto the spray pipe 3
The developing water ejected from No. 4 is applied to the surface. As a result, the photosensitive layer in the unexposed portion (image portion) of the waterless planographic plate 12 swells and is easily peeled off from the silicone layer.

Further, the waterless planographic plate 12 has a conveying roller pair 26.
It is nipped and conveyed by the brush roller 30 and the roller 32.
Is inserted between and. Brush roller 30 is waterless planographic 1
The upper surface of the waterless planographic plate 12 passing over the roller 32 is rubbed by rotating in a direction (counterclockwise direction in FIG. 2) corresponding to the conveying direction of 2. The developing water is also supplied to the brush roller 30, and the surface of the waterless planographic plate 12 is rubbed by the brush roller 30 while being coated with the developing water, and the silicone rubber layer swollen or eluted by the developing water is scraped off. As a result, the silicone layer corresponding to the exposed portion (non-image portion) remains on the waterless planographic plate 12 and a positive image is formed.

The excess developing water after the developing water applied to the surface of the waterless planographic plate 12 is dropped into the developing water recovery tank 22 and is recovered.

Further, the waterless lithographic plate 12 in which the silicone layer in the unexposed portion (image portion) is scraped off by the brush roller 30 is nipped and conveyed by the conveying roller pair 28, and the developing water is applied again, and the waterless lithographic plate 12 is reapplied. The developing water is squeezed out from. The waterless planographic plate 12 in this state is inserted between the conveying roller pair 94 of the dyeing section 16. This transport roller pair 94
The waterless planographic plate 12 is inserted between the brush roller 100 and the roller 32 by the nipping and conveyance by. The brush roller 100 rotates in a direction (counterclockwise direction in FIG. 2) corresponding to the conveyance direction of the waterless planographic plate 12 and applies the dyeing liquid, which is guided by the straightening plate 106, to the upper surface of the waterless planographic plate 12. . As a result, the dyeing solution adheres to the photosensitive layer, that is, the unexposed area (image area) and is dyed.

Further, the waterless planographic plate 12 has a pair of conveying rollers 96.
The dyeing solution is squeezed while being squeezed while the dyeing solution, which is inserted between the rollers and guided by the flow straightening plate 106, is applied to the surface of the roller above the conveying roller pair 96 and is squeezed. When the waterless planographic plate 12 is dyed, the image portion and the non-image portion can be easily discriminated from each other, and the plate inspection operation can be facilitated.

The waterless planographic plate 12 having the dyed image area is sent out from the dyeing section 16 and then inserted between the pair of conveying rollers 98 to wipe off the dyeing solution remaining on the surface. In addition, you may provide a washing process and a drying process after this.

Next, the circulation of the developing water and the replenishment of the developing water in the developing section 14 will be described. As shown in FIG. 2, the developing water in the developing water recovery tank 22 is sent to the spray pipes 34, 40, 42 by the operation of the circulation pump 44 and applied to the waterless planographic plate 12 conveyed in the developing section 14. To be done. Excess developing water after the application of the waterless planographic plate 12 falls and is collected in the developing water collecting tank 22. Developer water recovery tank 2
In the developing water collected in 2, there are mixed development debris such as a silicone rubber layer peeled from the surface of the waterless lithographic plate 12, and since these development debris have a lower specific gravity than the development water, the development water recovery tank 22 Inside it floats on the surface layer of the developing water.

In the developing section 14, when the aluminum detector 86 detects the insertion of the waterless planographic plate 12, the solenoid valve 62 is opened and passes through the flowmeter 64 with a regulating valve to a constant amount (1500 cc / min in this embodiment). The tap water of () flows through the pipe 58 and is supplied to the developing unit 14.

The tap water is supplied from the pipe 58 to the pipe 134, and the pipe 134 (diameter expanding pipe 128) is filled with the tap water. When the pipe 134 is filled, it flows into the developing water recovery tank 22. As a result, in the developing water recovery tank 22 of the developing section 14, the developing water in the surface layer flows into the overflow pipe 50 together with the development residue and is discharged from the developing water recovery tank 22, and is supplied with the developing water during the development processing of the waterless planographic plate 12. Dirty developing water containing developing dust can be discharged at the same time, and developing water containing almost no developing dust is stored in the developing water recovery tank 22, and the waterless lithographic plate 12 is developed by this developing water. be able to. Therefore, the waterless lithographic plate 12 can be subjected to development processing so as to have a constant quality with the development water containing no development residue. The developing water recovery tank 22 may be separately provided with a debris removing means for separating and discharging only the developing debris from the developing water.

Next, the replenishment of the dyeing solution in the dyeing section 16 will be described. The developing water remains on the surface of the waterless planographic plate 12 inserted into the dyeing section 16, and the dyeing solution is applied in this state. For this reason, developing water is brought into the dyeing liquid collected in the dyeing liquid collecting tank 92 after dyeing. Further, the dyeing solution deteriorates depending on the dyeing amount of the waterless planographic plate 12. Therefore, based on the detection result of the area of the waterless planographic plate 12 by the aluminum detector 86, the control device 52 causes the dyeing liquid supply pump 1 to operate.
24 and the water supply pump 130 are operated at a fixed ratio to replenish the dyeing liquid recovery tank 92 with the dyeing liquid. As a result, the dyeing unit 16 can perform stable dyeing processing for a long period of time without reducing the dyeing ability of the dyeing solution.

The replenishing dyeing solution supplied to the dyeing section 16 and the water for diluting the dyeing solution are supplied to the dyeing solution recovery tank 92 through the replenishing cylinder 132 by the operation of the dyeing solution supply pump 124 and the water supply pump 130. . When the water supply pump 130 operates, the water stored in the expanded pipe 128 of the pipe 134 is sent to the refill cylinder 132. The expansion pipe 128 of the pipe 134 is provided with a replenishment cylinder 132 by one operation of the water supply pump 130.
Has the capacity to store the water supplied to
Since a large amount of water is replenished from the pipe 58, the expanded pipe 128
The interior is never empty.

The water replenished from the pipe 58 is 1500 cc
/ min, the capacity of the water supply pump 130 is 200cc / min
Therefore, the inside of the pipe 134 does not become empty.
That is, the dyeing unit 1 is specially provided in the waterless planographic developing device 10.
It is not necessary to provide a water storage tank for supplying water to 6, and the space of this water storage tank can be saved. The water (developing water) supplied to the developing section 14 is the developing water recovery tank 2
Since it is circulated after flowing into 2, there is no particular problem even if the water supply amount is temporarily reduced.
The tap water may be supplied to the developing unit 14 in consideration of the amount of water supplied to the developing unit 6. That is, in this embodiment,
Water of 1500 cc / min is supplied to the developing section 14 and a part of this (2
00cc / min) is supplied to the dyeing section 16, but the developing section 1
The amount of water supplied to No. 4 and the amount of water supplied to the dyeing unit 16 may be set so that the waterless planographic developing apparatus 10 operates in an optimum state.

Further, by connecting the pipe 134 to the diameter-expanding pipe 128 and thickening the pipe line to the water supply pump 130, desired water can be stored in a short length. The expanded diameter portion 128 is not limited to a vinyl hose, and a metal tube or the like may be applied.

Although the processing of the waterless planographic plate 12 for forming a positive image has been described in this embodiment, the waterless planographic plate may be a negative type. In addition, various modifications are possible. For example, in the case of a waterless planographic developing apparatus, the developing section or the dyeing section may be divided into a plurality of parts, and as described above, the washing section, the drying section, etc. are provided on the downstream side of the dyeing section 16. It may be a thing.

Further, in the present invention, the photosensitive lithographic printing plate processing apparatus for rubbing the silicone rubber layer and the like with developing water and dyeing the plate surface according to the image in the dyeing section was applied, but a process of replenishing a large amount of water Even a photosensitive lithographic printing plate processing device that replenishes water to the tank with water supply piping and a small amount of water can be applied if water can be replenished in an optimal state for each tank. Is.

Further, the light-sensitive material processing apparatus to which the present invention can be applied may be not only a waterless planographic processing apparatus but also a photosensitive planographic printing plate processing apparatus for processing other photosensitive planographic printing plates, which uses water. It can be used for a combination of the treatment and the treatment in which the treatment liquid is diluted with water and supplied. Further, the present invention is not limited to a photosensitive lithographic printing plate processing apparatus, but can be applied to a photosensitive material processing apparatus in general.

[0087]

As described above, the light-sensitive material processing apparatus according to the present invention stores a part of the water supplied to the processing section in the water pipe to supply a diluting water to the supply section. Is unnecessary. As a result, an excellent effect that the photosensitive material processing apparatus can be made compact can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic view of a waterless planographic developing apparatus according to this embodiment.

FIG. 2 is a schematic configuration diagram showing a waterless planographic developing apparatus.

FIG. 3 is a schematic side view showing the vicinity of the opening of the water supply pipe.

[Explanation of symbols]

 10 Waterless planographic developing apparatus (photosensitive material processing apparatus) 12 Waterless planographic processing (photosensitive material) 14 Developing section 16 Staining section 22 Developer water recovery tank 58 Piping (water piping) 92 Staining solution recovery tank 130 Water supply pump 134 Piping (piping)

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[Procedure amendment]

[Submission date] March 8, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0035

[Correction method] Change

[Correction content]

Since the roller 32 is freely rotatable, when the waterless planographic plate 12 is fed while the brush roller 30 is stopped, the roller 32 rotates, so that the waterless planographic plate 12 can be smoothly rotated. It is inserted between the brush roller 30 and the roller 32. Such a state does not occur during the actual developing process, but is performed when inspecting the brushing state of the brush roller 30. That is, the brush roller 30 is rotated while maintaining the entire exposed waterless planographic plate or the unexposed waterless planographic plate 12 between the brush roller 30 and the roller 32 in a stopped state,
Judge whether the cosmetic width is appropriate.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0036

[Correction method] Change

[Correction content]

In such an inspection, the waterless planographic plate 12
Since the brush roller 30 can be freely inserted and extracted while the brush roller 30 is stopped, even if the amount of unexposed light or the amount of light exposure is reduced and the amount of displacement by the brush roller 30 is increased,
An accurate brush width can be obtained without peeling off the remaining portion during insertion and extraction.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0046

[Correction method] Change

[Correction content]

A solenoid valve 62 and a flow meter 64 with a regulating valve are arranged in the pipe 58 to which tap water is supplied, and these are connected to the control device 52. Therefore, when the control device 52 opens the solenoid valve 62, tap water is supplied into the waterless lithographic developing device 10, and the control device 52 supplies the adjusting valve-equipped flowmeter 64 to the developing portion 14. While controlling the flow rate, the control device 52 can integrate the supply amount of the developing water. When the supply amount of the developing water reaches a predetermined value, the filter 16
May be replaced, or the developing water in the developing unit 14 may be replaced. The solenoid valve 62 is opened when the processing of the waterless planographic plate 12 is started.
The water supply rate is 100cc / min-10000cc / min,
It is preferably 200 cc / min to 5000 cc / min.
The pipe 58 is branched on the inlet side of the solenoid valve 62, and a washing hose 70 is provided via a valve 68 so that the inside of the waterless lithographic developing apparatus 10 can be washed with tap water. There is.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0066

[Correction method] Change

[Correction content]

As shown in FIG. 2, the dyeing liquid supply pump 124 and the water supply pump 130 are connected to the controller 52, and the dyeing liquid supply pump 124 is connected by the controller 52.
When the water supply pump 130 is operated, a replenishing amount of the dyeing solution and water are supplied to the dyeing solution recovery tank 92 as the dyeing solution through the replenishing cylinder 132. The replenishment amount of the dyeing solution is determined according to the treatment amount of the waterless planographic plate 12, and the replenishment amount is 5 to 5.
100 cc / m ² (preferably 10~60cc / m ²⁾ is set in staining solution supply pump 12 to reflect this replenishing amount
4 and the water supply pump 130 are activated. In addition, every fixed time
Time supplementation or level supplementation may be performed.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0069

[Correction method] Change

[Correction content]

These liquid level gauges 140 and 146 are connected to the control device 52 so as to keep the liquid level of the developing water recovery tank 22 and the dyeing liquid recovery tank 92 within a predetermined range, and When the surface level goes out of the predetermined range, the worker is notified by an alarm, a display, or the like. This makes it possible to prevent the heater 88 from being heated and to monitor the operation of the replenishing devices for the developing water and the dyeing solution. For detecting the liquid level
In addition to float type, those that use electrically conductive terminals are
Can be used.

[Procedure correction 6]

[Document name to be amended] Statement

[Name of item to be corrected] 0072

[Correction method] Change

[Correction content]

Further, the waterless planographic plate 12 has a conveying roller pair 26.
It is nipped and conveyed by the brush roller 30 and the roller 32.
Is inserted between and. Brush roller 30 is waterless planographic 1
The upper surface of the waterless planographic plate 12 passing over the roller 32 is rubbed by rotating in a direction (counterclockwise direction in FIG. 2) corresponding to the conveying direction of 2. The developing water is also supplied to the brush roller 30, and the surface of the waterless lithographic plate 12 is rubbed by the brush roller 30 while being coated with the developing water, and the unexposed portion of the photosensitive layer swelled or eluted by the developing water. The silicone rubber layer is scraped off. As a result, the silicone rubber layer corresponding to the exposed portion (non-image portion) remains on the waterless planographic plate 12 and a positive image is formed.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0081

[Correction method] Change

[Correction content]

The replenishing dyeing solution supplied to the dyeing section 16 and the water for diluting the dyeing solution are supplied to the dyeing solution recovery tank 92 through the replenishing cylinder 132 by the operation of the dyeing solution supply pump 124 and the water supply pump 130. . When the water supply pump 130 operates, the water stored in the expanded pipe 128 of the pipe 134 is sent to the replenishment cylinder 131. The expansion pipe 128 of the pipe 134 is provided with a replenishment cylinder 132 by one operation of the water supply pump 130.
Has the capacity to store the water supplied to
Since a large amount of water is replenished from the pipe 58, the expanded pipe 128
The interior is never empty. The dilution ratio is
Water can be changed like "0-9" for "1"
It is desirable to keep it.

[Procedure Amendment 8]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (3)

[Claims] 1. An apparatus for processing a photosensitive material with a processing solution in a processing section, comprising: a processing solution replenishing section for supplying a replenishing solution of the processing solution; and water supply at one end and water supply amount adjusting means at the other end. A pipe capable of storing a predetermined amount of water, means for controlling the treatment liquid replenishing unit and the water supply amount adjusting unit so that the replenishment liquid and water are supplied to the treatment unit at a predetermined ratio,
A photosensitive material processing apparatus comprising: 2. A water treatment section for treating the exposed light-sensitive material with water, a water supply pipe for supplying water for treating the light-sensitive material to the water treatment section, and the water treatment section treated by the water treatment section. A processing section for supplying a processing solution to a photosensitive material, a processing solution replenishing section for replenishing the processing section with a replenisher for the processing solution, a water supply amount adjusting means for supplying water to the processing section, and one end from the water supply pipe. A pipe that receives a part of the water supplied to the water treatment unit and has the other end connected to the water supply amount adjusting means and capable of storing a predetermined amount of water; and a replenisher of the treatment liquid and the water have a predetermined ratio. And a means for controlling the water supply amount adjusting means and the processing liquid replenishing portion so as to be supplied to the processing portion. 3. The water storage pipe is expanded in diameter so that a predetermined amount of water can be stored.
Photosensitive material processing device.